Gas torch



Patented' Oct. l 16, 1923.

OTTO B. GREINER, F PEQUANNOCK, NEW JERSEY.

GAS TORCH;

Application iiled October 2, 1922. Serial No. 591,690.

To all whom it may concern:

Be it known that I. O'rro R. GREINER, a citizen of the United States, residing at Pe- Y quannock, in the county of Morris and State 6 of New Jersey, have invented certain new and useful Improvements in Gas Torches, of which the following is a, specification.

This invention relates to improvements in gas torches of the type used in producing a high degree of heat and directing the same as desired in the melting of metals, glass and the like or in cutting metals, as rails, plates and structural shapes.

The principal object of the inventlon is to provide a blast burner capable of producing a flame of high intensity and melting power. Another purpose is in the provislon of a burner which operates in a relatively quiet manner, substantially freed from the roaring noise -of ordinary burners, so injurious to the nerves of an operator, the improved burner producing a smooth flame of intense heat which is readily controlled.

A further aim is to provide a burner torch in which oxy en is admitted in controllable quantity with the fuel gas, airbeing admitted to produce a softer llame and more steady flow of oxygen and gas.

These and other like objects are attained by the novel construction, combination and arrangement of parts hereinafter described and shown in the accompanying drawing, forming a material part of this disclosure, and in which:-

Figure 1 is a partial side, partial sectional view of a torch made in accordance with the invention.

Figure 2 is a fragmentary view of the same looking from another angle.

Figure 3 is a sectional view showing one of the burners in detail.

In the draw-ing, the numeral 5 designates a pipe connecting with any source of gas supply, the passage in the pipe being controlled by the stop-cock 6 set in its length.

The opposite end 7 of the pipe is prefer ably contracted and, as shown, may be extended str-aight out or bent as at 8 at any preferred angle not less than ninet degrees.

Entering the pipe 5, near its re uced portion, is the angular bend 9 of a smaller tube 10, the same connecting with a source of com ressed air and having a stop-cock 11 set 1n its length for limiting the passage of air therethrough.

In a similar manner, a still smaller pipe 12 communicates with the pipe 10 through its angular bend 13 and is controlled by a stop-cock 14 conveniently adjacent to the others, said pipe 12 leadlng from a stored supply of oxygen.

From the foregoing it will be seen that the gas su plied by the pipe 5 may be mixed with air a one by closing cock 14 and o e11- ing cock 11, with oxygen byv closing coc 11 and opening cock 14, or the gas maybe mixed in any desired proportions with both air and oxygen by properly actuating the several controlling cocks.

It has been found thati the best results are obtained by arranging the pipe connections as shown, in which the oxygen is first mixed with the air and then the combined air and oxygen with the as.

At the end of t e ipe 8, whether straight or curved, is a regu ating stop-cockl and leading from it is another pipe 16 also contracted or diminished in area, as at 17, the continuing portion 18 being bent at an angle 19 and its end screw-threaded exteriorly to suit the bases of interchangeable burner tips 20.

Said tips are made with diierent sizes of apertures 21 to suit varying work conditions, their bases 22 being uniform as Shown and 'sets of five are preferably supplied with each burner, thus permitting -a wide range of operation.

It is necessary in constructing the torch to avoid sharp corners, bends so far as ossible and to provide round holes throug the plugs of the cocks, such holes having substantially the same cross sectional area as that of the pipes in which they are placed.

In operation the cock 15 is opened, then gas cock 6, the issuing gas being ignited at the burner tip.

Then the air cock 11 is slightly opened after which the oxygen cock 14 1s opened until the flame at the tip is blue. Excess of oxygen should be avoided as unnecessary iu obtaining even a high temperature.

Having thus described my invention and set forth the manner 'of its construction and application, what I claim as new and desire to secure by Letters Patent, is

A gas torch for heating comprising a gas.v

pipe, an air pipe entering said gas pipe, an 5 oxygen pipe entering said air pipe, independent cocks on each of said pipes, a reduced extension on said gas pipe, a regulat- In witness whereof I have affixed my signature.v

oTTo R. GREINER. 

